diff --git a/tests/e2e/bugs/0666-sidebar/test_sidebar_colors.py b/tests/e2e/bugs/0666-sidebar/test_sidebar_colors.py
index 1f519f35a..4949550b0 100644
--- a/tests/e2e/bugs/0666-sidebar/test_sidebar_colors.py
+++ b/tests/e2e/bugs/0666-sidebar/test_sidebar_colors.py
@@ -2,8 +2,7 @@
 
 from colors import bg_color, fg_color
 from conftest import ShinyAppProc
-
-# from controls import Sidebar
+from controls import Sidebar
 from playwright.sync_api import Page, expect
 
 
@@ -29,8 +28,7 @@ def test_sidebar_bg_colors(page: Page, local_app: ShinyAppProc) -> None:
     expect(first_sidebar).to_have_css("background-color", bg_color)
     expect(first_sidebar).to_have_css("color", fg_color)
 
-    # # TODO-karan; Test that sidebar position is left
-    # s1 = Sidebar(page, "s1")
-    # s1.expect_position("left")
-    # s2 = Sidebar(page, "s2")
-    # s2.expect_position("right")
+    s1 = Sidebar(page, "s1")
+    s1.expect_position("left")
+    s2 = Sidebar(page, "s2")
+    s2.expect_position("right")
diff --git a/tests/e2e/controls.py b/tests/e2e/controls.py
index 4e337361e..b44ae26a1 100644
--- a/tests/e2e/controls.py
+++ b/tests/e2e/controls.py
@@ -2390,10 +2390,22 @@ def __init__(self, page: Page, id: str) -> None:
             loc_container="div.bslib-sidebar-layout",
         )
         self.loc_handle = self.loc_container.locator("button.collapse-toggle")
+        self.loc_position = self.loc.locator("..")
 
     def expect_title(self, value: PatternOrStr, *, timeout: Timeout = None) -> None:
         playwright_expect(self.loc).to_have_text(value, timeout=timeout)
 
+    def expect_position(
+        self, position: Literal["left", "right"], *, timeout: Timeout = None
+    ) -> None:
+        is_right_sidebar = position == "right"
+        _expect_class_value(
+            self.loc_position,
+            f"sidebar-{position}",
+            is_right_sidebar,
+            timeout=timeout,
+        )
+
     def expect_handle(self, exists: bool, *, timeout: Timeout = None) -> None:
         playwright_expect(self.loc_handle).to_have_count(int(exists), timeout=timeout)